Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/eb1bd7d44b15
Author: Min-Zhong "John" Lu <jlu@mozilla.com>
Desc: Merge pull request #23751 from mnjul/bug_1059683_concept_layout

Bug 1059683 - Report one less pixel from KeyboardManager for ceiling due to dpx fractions. r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/fd5f851eeff7
Author: John Lu [:mnjul] <jlu@mozilla.com>
Desc: Bug 1059683 - Report one less pixel from KeyboardManager for ceiling due to dpx
Bumping manifests a=b2g-bump